Hot Work Tool Steel 5crmnmo Forged Steel Round Bar

• Type: Round
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Composition: Stainless Steel Scrap
• Technique: Forged
• Shape: Plate
• Surface Treatment: Polished
• N° de Modèle.: Round bar
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: Tool Steel Bar
• Paquet de Transport: Wooden
• Spécifications: 6-400mm
• Marque Déposée: Smooth
• Origine: China
• Code SH: 7214100000
• Capacité de Production: 5000 Ton/Year

Description de Produit

Description

Mold Steel 5CrMnMo is developed on the basis of medium carbon steel by adding three elements
of Cr, Mn, Mo. The steel is a hot work die steel with slightly poor hardenability and thermal fatigue
resistance.

Steel is suitable for various types of forging dies with high strength and high wear resistance.
When higher toughness is required, electro slag remelting steel can be used.

The carbon content in 5CrMnMo steel is kept at 0.40%~0.60%. High strength and thermal fatigue
strength can be obtained. Good toughness and thermal conductivity.

 

Chemical Composition(%)

C	Si	Mn	P	S	Cr	Ni	Mo	Cu
0.50-0.60	0.25-0.60	1.20-1.60	≤0.030	≤0.030	0.60-0.90	≤0.20	0.15-0.30	≤0.30

Heat Treatment
Stress Relief Before Quenching
Annealing: heat at 760-780ºC and keep it for 150 min, cool to 500ºC, and then air-cool.

Quenching
After heating and holding at 650°C for 80 minutes, heat and hold at 850°C for 150 minutes
to oil cooling (oil temperature around 40°C) to room temperature.

Tempering-Use Three Temperings
For the first time, heat and hold at 500ºC for 3h, and cool to room temperature in air.
For the second time, heat and keep at 450ºC for 4h, and cool to room temperature in air.
For the third time, heat and keep at 300ºC for 5h to cool to room temperature.
In this way, the hardness can reach about HRC43, which has good edge crack resistance
and prolongs the service life of the mold. 

Features And Application
Steel is suitable for various types of forging dies with high strength and high wear resistance.
When higher toughness is required, electro slag remelting steel can be used.